Annular magnet assembly

Details Annular magnet assembly Annular magnet assembly

1979-06-04

1980-10-07

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 70R, 310156, H02K 2122

Patent

active

042271053

ABSTRACT:
An annular magnet assembly for a dynamoelectric machine includes a plurality of arcuate permanent magnets disposed in an annular array and a frame member of a non-magnetic material for rigidly connecting the magnets together. The magnets are disposed in end-to-end abutment to form the annular array, both ends of each magnet being cut to form a recess in the inner or outer peripheral surface of the annular array at the respective abutments of the magnets. The frame member comprises a pair of annular portions which tightly engage the opposite sides of the annular array and ledge portions extending through the recesses to connect the pair of annular portions together.

REFERENCES:
patent: 1792530 (1931-02-01), Coughlin
patent: 2568479 (1951-09-01), Armstrong et al.
patent: 2756356 (1956-07-01), Brownlee et al.
patent: 3250929 (1966-05-01), Maier
patent: 3368275 (1968-02-01), Eberline et al.
patent: 3828212 (1974-08-01), Harkness et al.
patent: 4012651 (1977-03-01), Burson

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